Determination of essential and toxic trace elements in ten herbal medicines using energy-dispersive XRF analysis
Determination of essential and toxic trace elements in ten herbal medicines using energy-dispersive XRF analysis
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使用能量色散 XRF 分析测定 10 种草药中的必需微量元素和有毒微量元素
DOI：
10.1002/xrs.1288
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发表时间：
2011
影响因子：
1.2
通讯作者：
S. Al
中科院分区：
文献类型：
--
作者：
S. Al
用能量色散x射线荧光（EDXRF）法分析了10种阿育吠陀药物的元素浓度。采用EDXRF分析方法测定了Si、P、S、Cl、K、Ca、Ti、Cr、Ni、Mn、Fe、Cu、Zn、Br、As、Rb、Sr、Zr、Hg等19种元素的浓度。所有样品中仅存在以下元素，其浓度和范围为：K (7957-149 827 mg/kg), Ca (4000-15 937 mg/kg), Fe （68-6100 mg/kg）和Sr （9-512 mg/kg）。其余元素的浓度范围为0 ~ 12008 mg/kg。大多数元素的膳食摄入量低于推荐的膳食允许量。在一些标本中发现有毒元素汞超出允许值。Ca和Fe在所有样品中呈良好的正相关，r = 0.8907，而Mn和Fe在所有品牌中呈较差的线性相关，r = 0.5975。EDXRF分析是一种通过测定药物成分来考察药物质量的简便方法。版权所有©2011 John Wiley & Sons， Ltd
The elemental concentration of ten ayurvedic drugs has been analyzed using energy-dispersive X-ray fluorescence (EDXRF) method. Concentrations of 19 elements of Si, P, S, Cl, K, Ca, Ti, Cr, Ni, Mn, Fe, Cu, Zn, Br, As, Rb, Sr, Zr, and Hg have been determined using EDXRF analysis. Only the following elements were present in all the samples, with concentrations and ranges of: K (7957–149 827 mg/kg), Ca (4000–15 937 mg/kg), Fe (68–6100 mg/kg), and Sr (9–512 mg/kg). Concentrations of the rest of elements ranged from 0 to 12 008 mg/kg. Dietary intake of most elements was smaller than the recommended dietary allowance. In some specimens the toxic element of Hg was found to be beyond the permitted values. Ca and Fe in all specimens were positively well correlated with r = 0.8907, whereas Mn and Fe exhibited poor linear correlation (r = 0.5975) in all brands. The analysis by EDXRF is a simple way to investigate the quality of the drugs by determining their ingredients. Copyright © 2011 John Wiley & Sons, Ltd.